Suffixes

When adding ous, sion, ion, and ation, some base words change.

A final e or y may be dropped: famous, furious.

Some words have other changes: decision.

1.    famous

2.    invention

3.    election

4.    furious

5.    imagination

6.    education

7.    nervous

8.    explanation

9.    various

10.  decision

11.  relaxation

12.  conversation

13.  tension

14.  humorous

15.  exhibition

16.  attraction

17.  invasion

18.  creation

19.  occupation

20.  destination

    Challenge Words

21.  cancellation

22.  summarization

23.  glamorous

24.  mysterious

25.  administration